NHV_SecureLink/
│── src/                         # Core source code
│   │── main.rs                   # Main entry point for SecureLink
│   │── tunnel/                   # VPN tunnel engine
│   │   │── mod.rs                 # Module for tunnels
│   │   │── udp_tunnel.rs           # Secure UDP tunnel handling
│   │   │── tcp_tunnel.rs           # Secure TCP tunnel handling
│   │── encryption/                # Encryption and security modules
│   │   │── mod.rs                  # Encryption handler
│   │   │── post_quantum.rs         # Kyber encryption integration
│   │   │── aes_256.rs              # AES-256 hybrid encryption
│   │── auth/                      # Authentication system
│   │   │── nhv_id.rs               # NHV Zero-Knowledge ID authentication
│   │── routing/                   # AI-driven routing
│   │   │── ai_router.rs            # Adaptive network path optimization
│   │── logging/                   # Secure logging (self-wiping)
│── configs/                      # Configuration files
│── tests/                        # Security testing scripts
│── docs/                         # Documentation for internal use
│── LICENSE                       # NHV proprietary license
│── README.md                     # Project Overview
│── .gitignore                     # Git ignore file

------****-------*****-------

---IN RUST---

use std::net::UdpSocket;

fn main() -> std::io::Result<()> {
    let socket = UdpSocket::bind("0.0.0.0:51820")?;
    socket.set_nonblocking(true)?;

    println!("NHV SecureLink VPN Node Listening on UDP Port 51820...");

    let mut buf = [0; 2048];

    loop {
        match socket.recv_from(&mut buf) {
            Ok((amt, src)) => {
                println!("Received {} bytes from {}", amt, src);
                // TODO: Encrypt/decrypt traffic here
            }
            Err(ref e) if e.kind() == std::io::ErrorKind::WouldBlock => {
                // No data yet, continue
            }
            Err(e) => {
                eprintln!("Error receiving data: {}", e);
                break;
            }
        }
    }
    Ok(())
}


use pqcrypto::kem::kyber512::*;
use rand::rngs::OsRng;

fn main() {
    let mut rng = OsRng;
    let (public_key, secret_key) = keypair(&mut rng);
    
    let message = b"Hello, NHV SecureLink!";
    let (ciphertext, shared_secret) = encapsulate(&public_key, &mut rng);
    
    let decrypted_secret = decapsulate(&ciphertext, &secret_key);
    
    assert_eq!(shared_secret, decrypted_secret);
    println!("Post-Quantum Encryption Successful.");
}


[Interface]
PrivateKey = <GENERATED_PRIVATE_KEY>
Address = 10.0.0.1/24
ListenPort = 51820

[Peer]
PublicKey = <USER_PUBLIC_KEY>
AllowedIPs = 10.0.0.2/32
PersistentKeepalive = 25


struct SecureLinkPacket {
    packet_id: u64,        // Unique identifier for tracking
    timestamp: u64,        // Time-based encryption reinforcement
    payload: Vec<u8>,      // Encrypted data
    checksum: u32,         // Integrity verification
}

use std::net::UdpSocket;

fn main() -> std::io::Result<()> {
    let socket = UdpSocket::bind("0.0.0.0:53535")?; // Custom SecureLink port
    println!("NHV SecureLink VPN Node Listening on UDP Port 53535...");

    let mut buf = [0; 4096];

    loop {
        match socket.recv_from(&mut buf) {
            Ok((amt, src)) => {
                println!("Received {} bytes from {}", amt, src);
                let encrypted_payload = encrypt_packet(&buf[..amt]); // Apply custom encryption
                socket.send_to(&encrypted_payload, src)?;
            }
            Err(e) => {
                eprintln!("Error receiving data: {}", e);
            }
        }
    }
}

fn encrypt_packet(data: &[u8]) -> Vec<u8> {
    let mut encrypted = data.to_vec();
    encrypted.reverse(); // Simple encryption (placeholder for Kyber + AES-256)
    encrypted
}



struct SecureLogin {
    secret_key: String,
    public_key: String,
}

impl SecureLogin {
    fn generate_proof(&self) -> String {
        format!("{}-proof", self.secret_key) // Simulated proof
    }

    fn verify_proof(&self, proof: &str) -> bool {
        proof == self.generate_proof()
    }
}

fn main() {
    let login = SecureLogin {
        secret_key: "NHV_User_123".to_string(),
        public_key: "NHV_Public_ABC".to_string(),
    };

    let proof = login.generate_proof();
    println!("Generated Proof: {}", proof);

    if login.verify_proof(&proof) {
        println!("Zero-Knowledge Authentication Success!");
    } else {
        println!("Authentication Failed!");
    }
}



use std::net::UdpSocket;
use std::thread;
use std::sync::{Arc, Mutex};

fn main() -> std::io::Result<()> {
    let socket = UdpSocket::bind("0.0.0.0:53535")?;
    socket.set_nonblocking(true)?;
    let socket = Arc::new(socket);

    println!("NHV SecureLink VPN Node Listening on UDP Port 53535...");

    let buffer = Arc::new(Mutex::new(vec![0; 4096]));

    loop {
        let sock_clone = Arc::clone(&socket);
        let buffer_clone = Arc::clone(&buffer);

        thread::spawn(move || {
            let mut buf = buffer_clone.lock().unwrap();
            match sock_clone.recv_from(&mut buf[..]) {
                Ok((amt, src)) => {
                    println!("Received {} bytes from {}", amt, src);
                    let encrypted_data = encrypt_packet(&buf[..amt]);
                    sock_clone.send_to(&encrypted_data, src).unwrap();
                }
                Err(_) => {} // Ignore empty reads
            }
        });
    }
}

fn encrypt_packet(data: &[u8]) -> Vec<u8> {
    let mut encrypted = data.to_vec();
    encrypted.reverse(); // Simple encryption placeholder (will be Kyber + AES-256)
    encrypted
}


use pqcrypto::kem::kyber512::*;
use rand::rngs::OsRng;

fn main() {
    let mut rng = OsRng;
    let (public_key, secret_key) = keypair(&mut rng);
    
    let message = b"SecureLink VPN Quantum Encryption Test";
    let (ciphertext, shared_secret) = encapsulate(&public_key, &mut rng);
    
    let decrypted_secret = decapsulate(&ciphertext, &secret_key);
    
    assert_eq!(shared_secret, decrypted_secret);
    println!("Post-Quantum Encryption Success.");
}


struct SecureLogin {
    secret_key: String,
    public_key: String,
}

impl SecureLogin {
    fn generate_proof(&self) -> String {
        format!("{}-proof", self.secret_key) // Simulated proof
    }

    fn verify_proof(&self, proof: &str) -> bool {
        proof == self.generate_proof()
    }
}

fn main() {
    let login = SecureLogin {
        secret_key: "NHV_Secure_User_001".to_string(),
        public_key: "NHV_Public_Key_ABC".to_string(),
    };

    let proof = login.generate_proof();
    println!("Generated Proof: {}", proof);

    if login.verify_proof(&proof) {
        println!("Zero-Knowledge Authentication Success!");
    } else {
        println!("Authentication Failed!");
    }
}